Neutral Density Filters: Reflective
Elliot Scientific reflective neutral density filters attenuate by a partially reflective vacuum deposited coating. This metallic film offers a broader and more consistent neutral density which is ideal for use in laser projects due to its non-absorption. Filters can be stacked, but care needs to be taken to ensure there are no multiple reflection effects. These can be eliminated by slightly tilting the stack. A useful feature of this type of filter is that it can be used as a beamsplitter.